BZA85 Series

Explosion-proof Control Unit Systems

Overview

Explosion protection compliant with CENELEC, IEC, and NEC standards
Suitable for hazardous areas:
- Zone 1 and Zone 2
- Zone 21 and Zone 22
- Class I, Zone 1 and Zone 2
- Class I, Division 1, Groups A, B, C, D
Enclosure made from copper-free aluminium alloy with powder-coated surface
Designed to provide excellent dustproof, waterproof, and corrosion-resistant performance, suitable for harsh industrial environments
Features a compact and robust structure, ensuring durability and long service life
Flexible configuration of push buttons, indicators, meters, and other control components
Optimized layout for easy operation and quick access, improving usability and efficiency
Suitable for control and indication applications in hazardous locations

Specifications

Explosion Protection

IECEx (Global): IECEx CQM 17.0021X
- Ex db IIC T6 Gb
- Ex tb IIIC T80°C Db IP66
ATEX (Europe): TÜV CY 18 ATEX 0206093X
- II 2 G Ex db IIC T6 Gb
- II 2 D Ex tb IIIC T80°C Db IP66

Standards & Certifications

IECEx, ATEX
EN 60079-0 / -1 / -31
IEC 60079-0 / -1 / -31

Construction & Materials

Enclosure: Copper-free aluminium alloy, powder-coated surface
Colour: Window grey (RAL7040)
Fasteners: Stainless steel

Electrical Data

Rated Voltage:
- Max. 500V AC
- Max. 250V DC
- Up to 600V for voltmeter applications
Rated Current:
- Max. 10A (AC)
- 6A (DC)

Protection & Environment

Degree of Protection: IP66
Ambient Temperature: -60°C to +60°C

Components

Push Buttons: Refer to HA push button data
Indicators: Refer to HD indicator data
Meters:
- Ammeter (type 48)
- Voltmeter (type 48)
- Electromagnetic (moving iron) type
- Accuracy: Class 1.5
- Overload capacity: 5 times (2 times on request)

Installation

Cable Entries: Standard M20×1.5; NPT threads available on request
Cable Gland (optional): DQM-I (Ex e) or DQM-II (Ex d) recommended

Area Classification

Suitable for:
- Zones 1 & 2
- Zones 21 & 22

Data Sheet